Home / 8,764.32-13,143.80-3,218.08

Finding the Fourth Proportional to 8,764.32, 13,143.80 and 3,218.08

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Solution

The fourth proportional to 8,764.32, 13,143.80 and 3,218.08 is: 4,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.32 : 13,143.80 = 3,218.08 : x
  2. Step 2: Convert to fraction form
    8,764.32/13,143.80 = 3,218.08/x
  3. Step 3: Cross multiply
    8,764.32x = 13,143.80 × 3,218.08
  4. Step 4: Simplify right side
    8,764.32x = 42,297,799.90
  5. Step 5: Solve for x
    x = 42,297,799.90/8,764.32
  6. Step 6: Final answer
    x = 4,826.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.